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  • Easy, Flexible Operation

    View data on both the large backlit LCD display and from iOS® or Android™ mobile devices using the ExView app via Bluetooth.

  • Standalone Capture and Display

    Measure light intensity data up to 100,000 Lux (10,000 Fc), record max/min readings, and freeze the display with ‘data hold’ feature.

  • Portable Collection, Analysis, and Reporting

    Export .CSV data; create and send PDF reports including photos of the measurement location taken with a connected smartphone or tablet camera.

General Specifications
Light (Foot Candle)
0 to 18,571 Fc
Light (Foot Candle) Basic Accuracy
±4% of reading (<9,999 Fc); ±5% of reading (≥10,000 Fc)
Light (Foot Candle) Max Resolution
1 Fc (<9,999 Fc); 10 Fc (≥10,000 Fc)
Light (Lux)
0 to 199,900 Lux
Light (Lux) Basic Accuracy
±4% of reading (<9,999 Lux); ±5% of reading (≥10,000 Lux)
Light (Lux) Max Resolution
1 Lux (<9,999 Lux); 10 Lux (≥10,000 Lux); 100 Lux (≥100,000 Lux)
Sampling Rate
0.5 sec
Wireless Connectivity
Bluetooth® (via ExView iOS/Android mobile app)
Wireless Transmission Range
up to 90 m line of sight
Additional Details
6.9 × 2.1 × 1.1 in (176 × 53 × 28 mm)
5-digit (99999-count) backlit segment LCD display
Operating Conditions
32 to 104°F (0 to 4°C),≤80% RH
3 × AAA (1.5V) batteries
2 years
3.2 oz (90 g)
Related Documents
Export Restrictions

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

Extech LT250W